政府は2026年5月の閣議決定により、文化庁直轄の「国家古銭文化研究機構(仮称)」を正式承認。総事業規模100億円・研究員500名体制で2027年4月正式稼働を目指す。国宝古銭のデジタル完全記録、真贋評価の国家基準策定、次世代研究者育成、アジア国際連携の4柱で構成され、日本古銭市場の制度的信頼性向上に直結する国家プロジェクトとして注目される。
Japan's Agency for Cultural Affairs to Establish National Old Coin Research Institute — 10 Billion Yen Budget, 500 Researchers, Full Launch in 2027 as Heritage Coin Preservation Becomes National Strategy

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Dealers Handling This Category
A reference when considering a sale or appraisal. All are dealers and auction houses with a proven track record.
Ginza Coins
Ginza, Chuo-ku, Tokyo
One of Japan's most established numismatic dealers. The scale and variety of their regular auctions is among the largest in the country. Their catalogs are considered a benchmark for market pricing.
Japan Coin Auction (JCA)
Tokyo
Holds regular auctions with reliable hammer price data, making it a useful resource for tracking market values. Caters to a wide range of collectors from beginners to advanced buyers.
Taisei Coins
Tokyo
A dealer with an international network. Offers advanced services such as consignment to overseas auctions and NGC/PCGS grading submission. Recommended for high-value or internationally recognized coins.